MLM vs TOL: Correlation
Measured on weekly returns over the past three years, Martin Marietta Materials (MLM) and Toll Brothers, Inc. (TOL) carry a correlation of 0.63, a strong link.
Data as of 2026-08-27 · refreshed every trading day · weekly returns · methodology
How correlated are MLM and TOL?
Over the past 3 years, MLM and TOL moved with a correlation of 0.63, which is strong. Little has changed lately, as the 1-year reading of 0.56 lands near the 3-year figure. Over 5 years the correlation is 0.59, and the annualized covariance of weekly returns is 528.7 %².
By 3-year correlation, TOL places #7 of the 36 assets tracked against MLM. Correlation aside, the last 12 months split them widely, with TOL ahead by 19.8 points (-13.8% versus +6.0%).
How is this computed?
Pearson correlation on weekly returns: ρ(A,B) = cov(rA, rB) / (σA · σB), over windows of 52, 156 and 260 weeks. Covariance is annualized (×52) and expressed in %². Full definitions on the methodology page.
MLM vs TOL: side by side
| MLM (Martin Marietta Materials) | TOL (Toll Brothers, Inc.) | |
|---|---|---|
| 1-year return | -13.8% | +6.0% |
| 5-year return | +42.4% | +139.9% |
| Volatility (ann.) | 23.9% | 34.9% |
| Beta vs S&P 500 | 0.85 | 1.14 |
| Max drawdown (3Y) | -26.8% | -46.0% |
| Market cap | $37.5B | $13.4B |
| P/E (trailing) | 34.4 | 11.9 |
| Dividend yield | 0.62% | 0.69% |
| Sector / category | Materials | US Listed |
Year-by-year returns
| Year | MLM | TOL |
|---|---|---|
| 2022 | -22.7% | -30.0% |
| 2023 | +48.6% | +108.6% |
| 2024 | +4.1% | +23.4% |
| 2025 | +21.3% | +8.3% |
| 2026 | -14.9% | +7.9% |
Calendar-year price returns; the current year is year-to-date as of the data date above.
Are MLM and TOL good diversifiers for each other?
Only partially. A correlation of 0.63 means MLM and TOL share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.
FAQ
What is the correlation between MLM and TOL?
As of 2026-08-27, the correlation of weekly returns between MLM and TOL is 0.63 over 3 years, 0.56 over 1 year and 0.59 over 5 years.
Is TOL a good diversifier for MLM?
Only partially. A correlation of 0.63 means MLM and TOL share most of their swings. Pairing them dampens volatility somewhat, but it will not protect against a common drawdown.
What does a correlation of 0.63 mean?
A reading of 0.63 sits on a scale from −1 (opposite moves) through 0 (unrelated) to +1 (identical moves). Correlation captures direction, not magnitude or performance.
Use this data
$ curl https://www.pairbook.io/api/v1/pairs/mlm-vs-tol.json
Drop this badge in a README or notebook; it updates with the data:
[](https://www.pairbook.io/pair/mlm-vs-tol/)
The core API is free. Terms and every endpoint in the API documentation.
Related comparisons
Hubs: MLM correlations · TOL correlations
